import tkinter as tk

top = tk.Tk()
top.title('Hello Tk')
top.geometry('640x480+100+100')
top.resizable(True, False)
label1 = tk.Label(top, text = 'label1')
label1.pack()
label2 = tk.Label(top, text = 'label2')
label2.pack()
label3 = tk.Label(top, text = 'label3')
label3.pack()
top.mainloop()
